# sync on /youtube/v3/captions stops working

Calls to /youtube/v3/captions, query parameter sync on YouTube Data API stopped working on April 12, 2024.

- API: YouTube Data API (youtube.googleapis.com)
- Kind: Endpoint removal
- Announced: March 13, 2024
- Takes effect: April 12, 2024
- Calls after that day: fail
- Calls it hits: `/youtube/v3/captions`, `query parameter sync`
- Source: [Announcement](https://developers.google.com/youtube/v3/revision_history)
- Page: https://www.okapi.bot/providers/youtube-data-api/breaking-changes/sync-on-youtube-v3-captions-stops-working/

## What to use instead

Include timing information when inserting or updating caption tracks.

## YouTube Data API's words

> The sync parameter for the captions.insert and captions.update methods has been deprecated. YouTube will stop supporting the parameter as of April 12, 2024.